Traversing Trees for Rubyists

For those of you who live in Colorado like I do, I'm sure that you most certainly understand one meaning of a 'Tree', but I would like to show you another meaning in the world of computer science an ...

Write One Query

Sometimes is easier to write some Ruby to tackle a problem, but may result in a performance hit. For example, looping through a set of ActiveRecord objects and doing some processing on each object, o ...